it depends. do you train for sets of 20 on squats? if so, i'd agree with panda. if, on the other hand, you're like me and doing a set of 12 with 135 is a cardio workout, that might be okay.
it also depends if you mean a "get to 20 at all costs" set where you just don't rack the damn bar even if it takes you five minutes, or if you mean a normal set.
and damn, 365 for 20 would just be fucking insane. like, wow. damn.